Whoop MG Tracker Not Working? Here’s Why Replacements Are Already Underway

If you're searching for answers about your Whoop MG tracker not working, you're not alone. Many users have reported sudden malfunctions in their new Whoop MG fitness trackers, with some devices going unresponsive within hours of setup. In response, Whoop has reportedly begun proactively replacing these units—sometimes before customers even file a complaint. This early action follows a wave of complaints just weeks after the wearable’s official launch.

Released alongside the new Whoop 5.0, the Whoop MG—short for Medical Grade—was touted as a major leap in wearable health tech. With features like EKG monitoring, blood pressure insights, and advanced biometric tracking, it promised premium performance for a premium price. The device requires a $359/year Whoop Life subscription, targeting high-performance athletes, health-conscious users, and fitness data enthusiasts. But the launch has been rocky.

Just days after the MG hit the market, reports flooded the Whoop community forum and Reddit. Users described trackers that stopped working overnight, with no LED indicators and no connection to the app. One early user shared that their tracker failed after just eight hours. Another said theirs was dead within 30 minutes. These widespread complaints highlight serious wearable device reliability concerns.

Despite basic troubleshooting advice—charging the device, resetting, and reconnecting—most users found no success. That’s when a surprising trend emerged: some customers started receiving replacement units automatically, without even initiating support requests. One Reddit user shared a screenshot of Whoop’s message confirming a new tracker had already shipped. Even users with working MG units reported receiving unexpected replacements, signaling a preemptive quality control effort by Whoop.

This isn’t the first hiccup for Whoop this month. Earlier, the company faced backlash over a new upgrade policy that required members to extend subscriptions by 12 months to access the Whoop 5.0. The decision triggered confusion and frustration, especially among loyal users familiar with the previous six-month requirement for upgrades. The policy was quickly reversed after user outrage, but the damage to trust may linger.

From an industry standpoint, this launch highlights the increasing pressure on health tech companies to deliver flawless experiences in a space where reliability directly impacts user health insights.  

Whoop has yet to provide an official statement on the malfunctioning trackers, and it remains unclear how widespread the issue is. However, the company’s rapid replacement strategy may be an attempt to maintain its premium brand reputation in a competitive wearables market dominated by Apple Watch, Fitbit, and Garmin.

If you’ve purchased a Whoop MG and encountered issues—or even if your unit still works—it may be worth checking your email for a replacement notification. In the meantime, stay tuned for updates as Whoop addresses this unexpected challenge in the rollout of its most ambitious device yet.